package com.rj.bd.config;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/**
 * @Desc 1.设置编码 2.设置跨域  
 */
public class CharFilter implements Filter {

	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	public void doFilter(ServletRequest arg0, ServletResponse arg1, FilterChain arg2)
			throws IOException, ServletException {
		// TODO Auto-generated method stub
		//转换
		HttpServletRequest request = (HttpServletRequest) arg0;
		HttpServletResponse response = (HttpServletResponse) arg1;
	
		//指定允许其他域名访问 
		response.setHeader("Access-Control-Allow-Origin", "*");
		//跨域 Header 
		response.setHeader("Access-Control-Allow-Headers", "*");
	    //允许请求的类型   post get  这些
	    response.setHeader("Access-Control-Allow-Methods", "*");
	    //设置返回的文件类型
	    response.setContentType("application/json;charset=UTF-8");
		//设置编码集
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");	
		//放行
		arg2.doFilter(request, response);
	
		
	}

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}

	

}
